JPH10273174A - Cushioning material for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning material for packaging made of a recyclable and bendable sheet and having relatively small bulk specific gravity and which can be easily assembled in the packaging step and is hard to deform after being assembled. SOLUTION: A first frame material 1a and a third frame material 1c constituting one pair of parallel edge materials of a square frame and a second frame material 1b and a fourth frame material 1d constituting the other pair of parallel edge materials are provided, and each frame material 1a-1d has a plurality of hollows 10 which are arranged parallelly in the longitudinal direction so as to be constituted of hollow elements having nearly the same external shapes, in cross section, and cross-sectional dimensions, and the materials 1a-1d are formed in one row by bending bendable sheets such as corrugated fiberboard, thick paper or the like, and when the frame materials are assembled, external, side surface sheet parts 11 located outside the materials are connected to one another and ends of adjoining materials 1a-1d have a joint-like structure 16 to assemble the materials at right angles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a cushioning material for packaging, and more specifically, to a cover made of corrugated cardboard, cardboard, or other foldable and reproducible sheet, and having a rectangular cross section. The present invention relates to a cushioning material for packaging used for protecting the packaged object when the packaged product is packaged in an outer box.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. Hei 8-58842 proposes a cushioning material for packaging using a hollow cylindrical body made of cardboard. As shown in FIGS. 32 and 33, the cushioning material for packaging described in the above publication has cuts parallel to both ends of a hollow main body 6 having a rectangular cross section so as to intersect at right angles with one ridge. 60 and 61 are formed, and a cut portion is formed in the ridge portion between the cuts 60 and 61 in a manner of forming a plurality of symmetrical uneven portions 62 and 63. By forming fold curves 64 and 65 so as to connect both ends of the cuts 60 and 61, flaps 66 and 67 are formed on both sides of the main body 6 sandwiching the ridge. 33, the concave and convex portions 62 and 63 are engaged with each other to form a concave portion 60a by the flaps 66 and 67 as shown in FIG.

[0003] This packing cushioning material packs the article to be packaged in an outer box with the end of the article to be guided and supported in the recess 60a. Alternatively, as shown in FIG. 33, a pair of main bodies 6 and 6 are combined to form groove-shaped recesses 60a, 60a such that the recesses 60a are arranged on the left and right, and the articles 4 to be packaged are formed in the recesses 60a, 60a. The end is guided and supported, and in this state, the article to be packaged 4 is packaged in an outer box (not shown).

[0004]

The above-mentioned JP-A-8-58
The packaging cushioning material proposed in Japanese Patent Publication No. 842 is mainly composed of the hollow main body 6, and therefore has a smaller bulk specific gravity but has the following problems. First, since the main body 6 has a rectangular cross section and one hollow portion, the end of the packaged object 4 is inserted into the concave portion 60a,
Until the main body 6 is restrained by the outer box, the main body 6 is easily deformed, and it is difficult to pack the article 4 to be packaged in the outer box together with the cushioning material for packaging. Second, when used in the state as shown in FIG. 33, the side portions of the bottom flaps 67, 67 of the groove are connected to the flaps 66, 66 of the side wall only by the engagement of the plurality of uneven portions 62, 63. However, since it is the leg 68 at the center of the groove bottom that mainly receives the load of the package 4, the bottom flap 67 is fragile, and only a very light package can be packaged. Third, the fold curves for forming the hollow body 6, the parallel cuts 60, 61, the uneven portions 62, 63, and the fold curves 64, 65 can be formed simultaneously with the cutting of the sheet. It is difficult to automatically form the concave and convex portions 62 and 63 after the hollow main body 6 is formed in three dimensions.

SUMMARY OF THE INVENTION An object of the present invention is to form a sheet that is entirely recyclable and foldable, has a relatively low bulk specific gravity, is easily assembled in a packing process, and sets a cushioning material on an article to be packaged after assembly. An object of the present invention is to provide a packaging cushioning material that is not easily deformed before being packed in an outer box. It is another object of the present invention to provide a cushioning material for packaging which can be used for an object to be packaged having a certain weight. Still another object of the present invention is to provide a packaging cushioning material that can be easily assembled by automatic processing.

[0006]

SUMMARY OF THE INVENTION A packaging cushioning material according to the present invention has the following construction to solve the above-mentioned problems. That is, the cushioning material for packaging according to claim 1 has a first frame material 1a and a third frame material 1c for forming a pair of parallel edge materials of a plane rectangular frame, and a parallel shape of the frame. A second frame member 1b and a fourth frame member 1d for forming another pair of edge members are provided, and each of the frame members 1a to 1d includes a plurality of hollow portions 10 arranged in parallel along the length direction. And a hollow body having substantially the same cross-sectional shape and cross-sectional shape as the cross section intersecting with the hollow portion 10. The hollow bodies forming the frame members 1 a to 1 d are made of cardboard, cardboard, or other foldable sheets. Formed in a line by bending,
The adjacent frame members of the frame members 1a to 1d are connected to each other by the frame members 1a.
When 1 to 1d are combined with a flat rectangular frame, the outer side sheet portion 11 located outside is continuous, and each of the frame members 1
The end portions of adjacent frame members a to 1d are characterized by having a mouth-like structure portion 16 for combining the frame members at right angles while leaving the outer side sheet portion 11.

According to a second aspect of the present invention, there is provided the cushioning material for packaging according to the first aspect, wherein the frame members 1a to 1d have a rectangular cross-sectional outer shape, and constitute the frame members 1a to 1d. Between one hollow portion 10 and another hollow portion 10 adjacent to the hollow portion, a partition sheet portion 13 inclined with respect to the cross-sectional outline of the frame members 1a to 1d is provided.

According to a third aspect of the present invention, in the packaging cushioning material according to the first aspect, the frame members 1a to 1d have a trapezoidal cross-sectional shape, and the outer side sheet portion 11 is substantially vertical. The inner seat portion 15 facing the outer seat portion 11 is steeply inclined with respect to the outer seat portion 11, and one hollow portion 10 constituting each of the frame members 1a to 1d and the hollow A partition sheet portion 13 inclined with respect to the outer surface sheet portion 11 is provided between the portion and another adjacent hollow portion 10.

According to a fourth aspect of the present invention, there is provided the cushioning material for packaging according to the first aspect, wherein the frame members 1a to 1d are arranged such that the outer side sheet portion 11 is substantially vertical and the respective frame members 1st part 10a located outside when 1a-1d is combined with a plane rectangular frame, and each said frame material 1a-1
When the first portion 1d is combined with a plane rectangular frame, the second portion 1 is positioned continuously and parallel inside the first portion 10a and has a height substantially equal to the height of the first portion 10a.
0b.

According to a fifth aspect of the present invention, there is provided the cushioning material for packaging according to the first aspect, wherein the frame members 1a to 1d are arranged such that the outer side sheet portion 11 is substantially vertical and each of the frame members 1st part 10a located outside when 1a-1d is combined with a plane rectangular frame, and each said frame material 1a-1
1d is composed of a second portion 10b which is continuously and inwardly positioned inside the first portion 10a when combined with a flat rectangular frame, and whose height is lower than that of the first portion 10a. It is characterized by being.

According to a sixth aspect of the present invention, there is provided the packaging cushioning material according to any one of the first to fifth aspects, wherein the outer side sheet portion 11 is formed by folding a required portion of the sheet. Characterized by being formed of a layer of

In the packaging cushioning material according to the present invention, the first frame material 1a and the third frame material 1c which constitute a pair of parallel frame members of a plane rectangular frame, and another pair of parallel frame members are provided. And a second frame member 1b and a fourth frame member 1d, each of which comprises the frame members 1a to 1d.
Is composed of a laminate in which cardboard, cardboard, and other foldable sheets are folded or stacked in a state of being parallel in the vertical direction, and adjacent frame members of the frame members 1a to 1d Outer surface sheet portions 11 located outside when 1a to 1d are combined into a flat rectangular frame are connected, and the ends of adjacent frame materials of the frame materials 1a to 1d are connected to the outer surface sheet portions. 11 is characterized by having a port-like structure 16 for combining the frame members at right angles.

According to an eighth aspect of the present invention, there is provided the packaging cushioning material according to any one of the first to seventh aspects, wherein the connection-like structure portion 16 is formed of one of the adjacent frame materials. Portion-like structure in which a portion of the fore edge of the material other than the outer surface sheet portion 11 is in contact with the side surface of the other frame material, or the end of the adjacent frame material leaves the outer surface sheet portion 11 It is characterized in that it is a large-clasped connection-like structure that is cut off at approximately 45 degrees in a linear or zigzag shape in plan view.

According to a ninth aspect of the present invention, in the packaging cushioning material according to any one of the first to eighth aspects, the first frame material 1a and the fourth frame material 1d are discontinuous. In one of the first frame member 1a and the fourth frame member 1d, the outer surface sheet portion 11 is extended and fixed to the outer surface of the other frame member by bonding or other means. A fixing sheet portion 17 is formed.

According to a tenth aspect of the present invention, in the packaging cushioning material according to the sixth or seventh aspect, the first frame material 1a and the fourth frame material 1d are continuous with each other, and The first frame member 1a or the fourth frame member 1d is separated into two separation pieces 1i and 1j in a cut shape crossing the hollow portion 10, and the one separation piece 1i and the other separation piece 1j are separated. When the two separating pieces 1i and 1j abut against each other, the joint portions 18 and 18 are bonded to each other by bonding or other fixing or concave and convex engagement with each other so that the outer surfaces form a substantially uniform vertical surface.
a is formed.

According to the eleventh aspect of the present invention, there is provided a cushioning material for packaging, wherein a first frame material 1a and a third frame material 1c which constitute a pair of parallel edge materials of a plane rectangular frame, and a parallel other frame material. A second frame member 1b and a fourth frame member 1d which constitute a pair of edge members;
Frame member 1e provided side by side inside the frame member 1a
And a sixth provided side by side inside the second frame 1b.
A frame member 1f, a seventh frame member 1g provided side by side inside the third frame member 1c, and an eighth frame member 1h provided side by side inside the fourth frame member 1d, Each of the frame members 1a to 1h has a plurality of hollow portions 10 arranged in parallel along the length direction, and is formed of a hollow body having substantially the same outer shape and cross-sectional size as a cross section intersecting with the hollow portions 10, The hollow bodies constituting each of the frame members 1a to 1h are formed in a line by folding a foldable sheet such as corrugated cardboard, cardboard, and the adjacent frame members of each of the frame members 1a to 1h are connected to each other by each frame member. When 1a to 1h are combined into a flat rectangular frame, outer side sheet portions 11 located outside are connected to each other, and the ends of adjacent frame members of each of the frame members 1a to 1h are connected to the outer side sheet portion. Combine the frame materials at right angles, leaving 11 It is characterized by having a Joint-like structure 16 for.

According to a twelfth aspect of the present invention, the cushioning material for packaging according to any one of the first to eleventh aspects is characterized in that the rectangular frame 1 in a plan view is formed by the cushioning material for packaging according to any one of the first to eleventh aspects. .

According to a thirteenth aspect of the present invention, the packaging cushioning material according to any one of the first to eighth and eleventh aspects forms the rectangular frame 1 in a plan view. It is characterized in that the body 1 is provided with a closed loop-shaped outer peripheral frame 3 that is in contact with the outer peripheral surface of the frame body 1.

According to a fourteenth aspect of the present invention, there is provided a cushioning material for packaging, wherein the cushioning material for packaging according to any one of the first to third and seventh aspects is combined in a rectangular shape in plan view, and an outer frame 1A. The cushioning material for packaging according to any one of to 3 to 7 is combined in a rectangular shape in a plan view, and the outer frame 1
A, and an inner frame 1B provided in contact with the inner peripheral surface of A.

According to a fifteenth aspect of the present invention, there is provided the packaging cushioning material according to the fourteenth aspect, wherein the inner frame 1 is provided.
The height of B is lower than the height of the outer frame 1A.

The packaging cushioning material according to claim 16 is the packaging cushioning material according to any one of claims 12 to 15, wherein the inside of the frame 1 is entirely or in the frame 1.
A raised bottom member 2 formed by folding or folding a foldable sheet such as cardboard, cardboard, or the like along a predetermined direction is provided on an inner portion of a frame material forming a pair of parallel edge materials. And

According to a seventeenth aspect of the present invention, there is provided the packaging cushioning material according to the third aspect, wherein the packaging cushioning material according to the third aspect is provided in a rectangular shape in a plan view and provided inside the frame. The frame 1 has leg portions 21 and 21 in contact with the inner side sheet portion 15 of the frame material constituting at least a pair of edge materials, and folds or folds a corrugated cardboard, cardboard or other foldable sheet in a predetermined direction. And a raised bottom member 2 formed by folding or laminating along.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a cushioning material for packaging according to the present invention will be described below with reference to FIGS. 1st Embodiment Claims 1, 2, 8, 9, 12, and 16 are shown in FIGS.
2 shows a packaging cushioning material according to an embodiment corresponding to the invention of FIG.

The cushioning material for packaging according to this embodiment includes a first frame material 1a and a third frame material 1c, which are a pair of parallel edge materials constituting a plane rectangular frame 1, and the frame 1 A second frame member 1b and a fourth frame member 1 which are another pair of parallel edge members to be constituted.
and a raised bottom member 2 inserted in the frame 1 so as to be inserted therein. Each of the frame members 1a to 1d is
A substantially vertical outer surface sheet portion 11, a substantially horizontal bottom sheet portion 12, and an inclined partition sheet portion 13 are formed in a line by folding a foldable sheet A (FIG. 2) such as cardboard, cardboard or the like. , Bottom sheet part 1
2 and a pair of hollow portions 10, 10, which are composed of a top sheet portion 14 parallel to the outer side sheet portion 11 and an inner side sheet portion 15 parallel to the outer side sheet portion 11. .
The hollow portions 10, 10 are arranged in a right-angled cross section in a normal / reverse orientation, and have the same cross-sectional size. Therefore, the frame members 1a to 1d also have the same cross-sectional shape and outer shape.

As shown in FIG. 1, the frame members 1a to 1d are adjacent to each other by the frame members 1a to 1d.
The outer side seat portion 11 located on the outside when
Are connected. At the end between adjacent frame members of each of the frame members 1a to 1d, there is formed a joint-like structure portion 16 for combining the frame members 1a to 1d at right angles while leaving the outer side sheet portion 11. Have been. In the present embodiment, the connection-like structure portion 16 is configured such that a portion of the end portion of the second frame member 1b and the end portion of the fourth frame member 1d other than the outer side sheet portion 11 is the first and third portions.
Of the frame members 1a and 1c. In each of the joint-like structures 16, both ends of the second and fourth frame members 1b and 1d are easily bonded to the inner surfaces of the first and third frame members 1a and 1c. In order to make the inner side sheet portion 15 extend,
a is formed.

The end of the fourth frame member 1d on the side of the first frame member 1a is provided with an outer portion so as to reliably maintain the frame shape when the rectangular frame 1 is formed by the frame members 1a to 1d. A fixing sheet portion 17 is formed by extending an end of the side sheet portion 11, and the fixing sheet portion 17 is fixed to the outer surface of the first frame member 1a by bonding, stapling, or other means.

The first frame members 1a and 1b are assembled by a sheet A made of one piece of corrugated cardboard cut as shown in FIG. Sheet A cut as shown in FIG.
2, the first frame material forming portion A1, the second frame material forming portion A2, the third frame material forming portion A3, and the fourth frame material forming portion A4 from the lower end portion to the upper end portion in FIG. Are formed in order.

Each of the forming portions A1 to A4 has an outer side sheet portion 11, a valley fold curve a1, a bottom sheet portion 12, and a valley fold curve a1, which are bent in a V-shape from one side, respectively. A partition sheet portion 13, a mountain-shaped bent curve a2 bent in an inverted V shape, a top sheet portion 14, a mountain-shaped bent curve a2, and an inner surface sheet portion 15 are formed. In the step A ′ of the sheet A made of corrugated cardboard, each folding curve is formed so as to extend along the height direction of the outer sheet part 11, the partition sheet part 13, and the inner sheet part 15. A valley-shaped fold curve a1 is provided at each of the inner end portion of the outer surface sheet portion 11 in the first frame material forming portion A1 and both ends of the outer surface sheet portion 11 in the third frame material forming portion A3.
A fixing sheet portion 17 is formed at an outer end of the outer side sheet portion 11 in the fourth frame material forming portion A4 via a valley-shaped fold curve a1. A glue allowance flap 16a is formed at both ends of each of the inner side sheet portions 15, 15 in the second frame material forming portion A2 and the fourth frame material forming portion A4 via a valley-shaped fold curve a1. ing. Between each bottom sheet portion 12, each partition sheet portion 13
A notch a for forming the connection structure 16 in FIG. 1 is provided between each other and between the top sheet portions 14.
3 are formed.

The sheet A is provided with a bending direction at each of the folding curves a1 and a2, and after being glued to a required portion, along the folding curves a1 and a2 as shown in FIG. Each part is bent to assemble the frame members 1a to 1d. The cushioning material for packaging of FIG. 3 composed of the frame materials 1a to 1d is as follows.
Normally, as shown in the figure, only the frame members 1a to 1d are transported from a manufacturing factory to a place desired by the user in a semi-deployed state in which they are three-dimensionally formed, and as shown in FIG. The three-dimensional frame 1 is formed. 3 from the state of FIG. 3 to the three-dimensional shape as shown in FIG. 2, along the valley-folded fold curve a1 in each of the outer sheet portions 11 shown in FIG. It is bent at right angles, and the respective flaps 16a are bonded to both ends of the inner side sheet portion 15 of each of the frame members 1a and 1c. Then, the fixing sheet portion 17 is bent toward the outer side sheet 11 side of the first frame member 1a, and the fixing sheet portion 17 is bent to the first frame member 1a.
And fixed to the outer surface by adhesive or other means.

The raised bottom member 2 is, as shown in FIGS.
A top sheet portion 20, side leg portions 21 and 21 formed at lower portions on both sides of the top sheet portion 20, and end leg portions 22 formed at both end lower portions of the top sheet portion 21, The top sheet portion 20 is provided with beveled inclined sheet portions 23 on the four ridges of the top sheet portion 20.

The raised bottom member 2 having the above configuration is similar to the one shown in FIG.
Is assembled from a sheet A5 made of corrugated cardboard cut as described above. Sheet A5 cut into a substantially rectangular shape
, A sloping sheet portion 23 and a side leg portion 21 are formed in order on both sides of the central top sheet portion 20 via mountain-folded fold curves a2 and a2. At both ends of the top sheet portion 20, fold curves a2,
The inclined sheet portion 23 and the end leg portion 22 are formed in this order through the a2, and both sides of the end leg portion 22 are each provided with a reinforcement flap that also serves as reinforcement via a mountain-shaped fold curve a2. 24, 24 are formed. As shown in FIGS. 5 and 6, the sheet A5 cut and processed as shown in FIG.
The raised bottom member 2 is manufactured by bonding the portion 4 to the inner surfaces of both ends of each side leg 21. Raised bottom member 2
Is inserted into the frame of the frame body 1 formed by the frame members 1a to 1d, and adhered to the inner side sheet portions 15.

The packaging cushioning material of the embodiment shown in FIG. 1 is, for example, as shown in FIG.
It is used to protect the object 4 to be packaged from impact by inserting and holding it inside and packing it in an outer box (not shown) in the inserted state.

The cushioning material for packaging according to the above embodiment comprises
Since a to 1d have a plurality of hollow portions 10 and 10 divided by the inclined partition sheet portion 13, they are hardly deformed, and can protect even a relatively heavy object to be packaged. When an impact is received, any of the hollow portions 10 of any of the frame members 1a to 1d is deformed depending on the direction in which the external force acts, so that the impact can be well absorbed. Since each of the frame members 1a to 1d has a plurality of hollow portions 10, even if the impact is large, the plurality of hollow portions 10 are rarely crushed at once, and one of the hollow portions 10 is often left. Can be well protected. Since the cushioning material for packaging constituted by each of the frame members 1a to 1d has an automatic structure, since the hollow portions 10, 10 of each of the frame members 1a to 1d are along the same direction, and their cross-sectional shapes and cross-sectional dimensions are the same. It can be manufactured at lower cost by processing. The cushioning material for packaging as shown in FIG. 3 in the above embodiment is convenient because it is not bulky in the semi-deployed state as shown in FIG. 3 and can be transported and stored in this state. In the packaging cushioning material of the first embodiment, the article to be packaged 4
When the end is protruded from the frame 1, the raised bottom member 2 is not installed. In such an embodiment,
Only the frame 1 serves as a packaging cushioning material.

Second Embodiment FIGS. 8 to 10 show a cushioning material for packaging according to an embodiment corresponding to the first, second, eighth, twelfth and fourteenth aspects of the present invention. FIG. 8 is an exploded perspective view of the cushioning material for packaging according to the second embodiment,
FIG. 9 is a perspective sectional view of an assembled state, and FIG. 10 is a partially enlarged perspective view showing a connection structure of the frame body of FIG. 1A is an outer frame, and 1B is an inner frame inserted inside the outer frame 1A so as to be in contact with the inner peripheral surface thereof.

The outer frame 1A and the inner frame 1B are different from each other only in the dimensions, and are otherwise the same in construction. The first frame has the same cross-sectional shape as the frame 1 of the first embodiment. Lumber 1
a, 2nd frame material 1b, 3rd frame material 1c, and 4th frame material 1
d is made into a three-dimensional plane rectangle. Adjacent frame members 1a to 1d of the outer frame 1A and the inner frame 1B
Are continuous at the portion of the outer side sheet portion 11. These adjacent frame members 1a and 1b, frame members 1b and 1c,
At each end of the frame members 1c and 1d and the frame members 1d and 1a, their outer edges are straightened in plan view, leaving their outer side sheet portions 11 in order to combine the frames at right angles. There is formed a large mouth-shaped small mouth-shaped structure portion 16 having a structure cut off at approximately 45 degrees and brought into contact therewith.

A raised bottom member 2 is inserted inside the inner frame 1B. The raised bottom member 2 includes a top sheet portion 20, side leg portions 21, 21 formed at lower portions on both sides of the top sheet portion 20, and ends formed at lower portions at both ends of the top sheet portion 20. And leg-shaped seat portions 22, 22.

The cushioning material for packaging of the second embodiment is formed as an inner / outer double frame composed of the outer frame 1A and the inner frame 1B. Since the frame 1B is unlikely to be crushed at the same time, excellent impact resistance can be exhibited. Other configurations, operations, and effects of the second embodiment are the same as those of the packaging cushioning material of the first embodiment, and thus description thereof will be omitted.

Third Embodiment FIG. 11 shows a packaging cushioning material according to a third embodiment of the present invention. The cushioning material for packaging of this embodiment is a frame material 1 having substantially the same configuration as the cushioning material of the first embodiment.
Although it is the same as the packaging cushioning material of the second embodiment, it is composed of an outer frame 1A composed of a to 1d and an inner frame 1B inserted therein with a similar configuration. The configuration differs from the cushioning material of the second embodiment in that the height of the inner frame 1B is lower than the height of the outer frame 1B. The joint-like structure 16 between the ends of the adjacent frame members 1a to 1d is configured in substantially the same manner as the cushioning material for packaging of the first embodiment. Since the inner frame 1B also serves as the raised bottom member, the packaging cushioning material of this embodiment can be used in a manner as shown in FIG. 7 without particularly providing the raised bottom member. In such an embodiment, the cushioning material for packaging, including the raised bottom, is formed entirely of a single sheet, and the manufacturing process is simpler, thus further reducing manufacturing costs. Other configurations, functions, and effects of the cushioning material of this embodiment are the same as those of the packaging cushioning material of the second embodiment, and thus description thereof will be omitted.

Fourth Embodiment FIG. 12 shows a cushioning material for packaging according to another embodiment of the present invention. The cushioning material for packaging according to this embodiment includes an outer frame 1A in which the frame members 1a to 1d are formed in a flat rectangular shape, and an inner frame 1B in which the frame materials 1a to 1d are formed in a flat rectangular shape. The point that the height of the frame 1B is lower than the height of the outer frame 1A is almost the same as the packaging cushioning material of the third embodiment, but the inner frame 1
The configuration differs from the cushioning material of the third embodiment in that the top sheet portion 14 of each of the frame members 1a to 1d in B is inclined downward inward. The cushioning material of this embodiment also
Although the inner frame 1B also serves as the raising bottom member 2, since the top sheet portion 14 of each of the frame members 1a to 1d in the inner frame 1B is inclined downward inward, This is effective when the end shape has an inclination corresponding to the inclination of the top sheet portion 14.

Fifth Embodiment FIG. 13 shows a cushioning material for packaging according to a fifth embodiment of the present invention. The cushioning material for packaging according to this embodiment has a first portion connected to the outer surface sheet portion 11.
To a fourth frame member 1a to 1d, and a raised bottom member 2 inserted into the frame body 1. Each of the frame members 1 a to 1 d has a trapezoidal cross-sectional outer shape, and the inner side sheet portion 15 has a vertical outer surface such that the width of the top sheet portion 14 is smaller than the width of the bottom sheet portion 12. It is steeply inclined with respect to the seat portion 11. Each of the leg portions 21 and 22 of the raised bottom member 2 is formed along the inclination of the inner surface sheet portion 15 of each of the frame members 1a to 1d.

In the packaging cushioning material of this embodiment, since the inner wall surface of the rectangular frame 1 is steeply inclined, the raised bottom member 2 is formed in accordance with the inclination of the inner wall surface. The member 2 does not fall off the frame 1 only by being inserted into the frame 1. Therefore, the raised bottom member 2
Is not required to be fixed to the inner wall surface of the frame 1 by bonding or other means, so that the manufacturing process is further simplified. Other configurations, functions, and effects of the packaging cushioning material of this embodiment are substantially the same as those of the packaging cushioning material of the first embodiment, and thus description thereof will be omitted.

Sixth Embodiment FIG. 14 shows a cushioning material for packaging according to a sixth embodiment of the present invention. The cushioning material for packaging includes a flat rectangular frame 1 formed by the frame materials 1a to 1d,
And a raised bottom member 2 attached to the inside of the frame 1 in an inserted state.

Each of the frame members 1a to 1d is a state in which four hollow portions 10 each having a right-angled triangular cross section and the same cross-sectional dimension are alternately arranged in a normal / reverse posture. , A first portion 10a located on the outside, and the first portion 10a
And a second portion 10b formed continuously and parallel to the inside of the portion 10a. The height of the first portion 10a and the height of the second portion 10b are the same. The first portion 10a includes an outer sheet portion 11, a bottom sheet portion 12,
The partition sheet portion 13, the top sheet portion 14, and the vertical partition sheet portion 13a are configured. On the other hand, the second part 10
b is a vertical partition 13a shared with the first portion 10a.
, Bottom sheet portion 12 and inclined partition sheet portion 13
And a top sheet portion 14 and an inner surface sheet portion 15. The raised bottom member 2 has a substantially horizontal top sheet portion 20 and side leg portions 21 and 21 formed vertically at lower portions on both sides thereof.
Is composed of a plurality of layers obtained by folding required portions of a sheet as a material.

In the packaging cushioning material of this embodiment, each of the frame members 1a to 1d constituting the frame 1 is composed of the first portion 10a and the second portion 10b as described above.
Even when the impact is large, each of the partial cavities 10a and 10b is unlikely to be crushed at once, and the cushioning effect is large. Further, the raised bottom member 2 is reinforced by the side leg portions 21 being constituted by a plurality of layers, and the buffering action of the raised bottom member 2 is also large. Other configurations, operations, and effects of the cushioning material of this embodiment are substantially the same as those of the cushioning material of the first embodiment, and a description thereof will be omitted.

Seventh Embodiment FIG. 15 shows a cushioning material for packaging according to a seventh embodiment of the present invention. Each of the frame members 1a to 1d in the cushioning material for packaging of this embodiment is the same as each of the frame members 1a to 1d in the cushioning material for packaging of the fifth embodiment.
The first one located on the outside when d is combined into a planar square
Is the same in that it is composed of a portion 10a and a second portion 10b continuously and parallel inside the portion 10a.
The difference between the two is that each of the frame members 1a to 1a in this embodiment is different.
The second portion 10b of 1d has a height equal to that of the first portion 10b.
a of the first portion 10
a has an inner surface sheet portion 15 and a second portion 10a.
b indicates that the outer side sheet portion 11 is provided. In the cushioning material for packaging of this embodiment, the height of the second portion 10b located inside the frame 1 is lower than the height of the first portion 10a, and the second portion 10b is similar to the raised bottom member. Therefore, no raised bottom member is provided.

The cushioning material for packaging according to this embodiment comprises
a to 1d are a first part 10a and a second part 10b,
Since the partition 13a is not shared as in the fifth embodiment, the portion is further strengthened. Further, as described above, since the height of the second portion 10b of the frame members 1a to 1d is low, a raised bottom member is not required, and the first to fourth portions are not required.
Since the frame 1 having the raised bottom can be constituted only by the frame members 1a to 1d, the manufacturing process is further simplified, and the manufacturing cost is further reduced. Other configurations, functions, and effects of the cushioning material of this embodiment are substantially the same as those of the cushioning material of the fifth embodiment, and a description thereof will be omitted. In addition, also about the cushioning material for packaging of 6th Embodiment, similarly to 7th Embodiment, the 2nd part 10b of the 2nd part 10b continues to the lower end of the inner surface sheet part of the 1st part 10a of the frame materials 1a-1d. The outer side sheet portion 11 can be formed.

Eighth Embodiment FIG. 16 shows a cushioning material for packaging according to another embodiment corresponding to the first, second and eighth aspects of the present invention. In the cushioning material of this embodiment, the inner surface sheet portion 15 of each of the frame materials 1a to 1d is
The sheet is formed of a plurality of layers obtained by folding required portions of the sheet. As described above, since the inner wall surface of the frame member 1 is formed of a plurality of layers, this portion is strengthened and has a higher cushioning effect. The cushioning material of this embodiment is
In the state of FIG. 16, in addition to being used in a state where the end of the packaged object protrudes from one side of the frame body 1 to the other side,
A raised bottom member (not shown) may be attached to the inside of the frame body 1 and used in a state as shown in FIG. Other configurations, operations, and effects of the cushioning material of this embodiment are substantially the same as those of the packaging cushioning material of the first embodiment, and thus description thereof is omitted.

Ninth Embodiment FIG. 17 shows a cushioning material for packaging according to an embodiment corresponding to the inventions of claims 6, 10, 12, and 16. In the packaging cushioning material of this embodiment, the outer side sheet portion 11 of each of the frame members 1a to 1d is formed of a plurality of layers (three layers) obtained by folding a required portion of the sheet, and adjacent frame members 1a to 1d are formed. 1d, the first frame material 1a and the fourth frame material 1d
Of the outermost layer.

The fourth frame member 1d is separated into two separation pieces 1i and 1j in a cut portion crossing the hollow portion 10 at a portion near the center. Each separation piece 1i, 1j
When the ends of both 1i and 1j are abutted against each other, a joint portion 18, which is connected to a portion of the outer surface sheet portion 11 by bonding so that the outer surface forms a substantially vertical surface. 18a are formed. One joint portion 18 is a glue-shaped joint portion obtained by extending a layer on the outer side of the outer surface sheet portion 11 of the separation piece 1j, and the other joint portion 18a is an outer surface at the tip end of the separation piece 1i. It is a joint portion including a glue substitute receiving portion formed in a portion of the seat portion 11. The separation pieces 1i and 1j are connected by bonding them so that one joint portion 18 fits into the other joint portion 18a.

In the frame 1 composed of the frame members 1a to 1d, side leg-shaped portions 21 and 2 are provided at lower portions on both sides of the top sheet portion 20.
A raised bottom member 2 having an insert 1 is inserted. In the raised bottom member 2, the top sheet portion 20 and the side leg portions 21 are reinforced by a plurality of layers, and the cushioning action is large.

The cushioning material for packaging according to the ninth embodiment is characterized in that when assembling the continuous frame members 1a to 1d into a frame shape, the joint portion 1 is used.
The connection efficiency can be improved in the packing step of the packaged object because the connection can be easily made in a closed loop by the 8, 18a. Further, since the outer side sheet portion 11 of each of the frame members 1a to 1d is formed of a plurality of sheet layers, the frame member is strengthened and the buffering action is further improved. Other configurations, functions, and effects of the packaging cushioning material of the eighth embodiment are substantially the same as those of the cushioning material of the first embodiment, and thus description thereof will be omitted.

Tenth Embodiment FIG. 18 shows a cushioning material for packaging according to another embodiment corresponding to the inventions of claims 6, 10, 12, and 16. This embodiment is different from the joint 1 in the cushioning material of the eighth embodiment.
8 and 18a, in which the end of one of the separation pieces 1j of the fourth frame member 1d is formed by an engagement protrusion that partially protrudes a layer portion on the outer side of the outer side sheet portion 11. Joint 1
8 is formed, and at the end of the other separating piece 1i, there is formed a joint portion 18a formed of a concave portion for engaging the joint portion 18 obtained by cutting off a part of the layer on the outer side of the outer surface sheet portion 11. I have. By inserting or fitting the joint portion 18 composed of the engagement protrusion into the joint portion 18a composed of the concave portion to engage and connect the separation pieces 1i and 1j, the entire frame members 1a to 1d are framed. It is formed in a shape. In the cushioning material of this embodiment, the joint portions 18 and 18a are
Since the series of frame members 1a to 1d can be assembled in a rectangular frame shape, the work efficiency in the packing process of the article to be packaged can be further improved. Other configurations, operations, and effects of the cushioning material of this embodiment are the same as those of the cushioning material of the eighth embodiment, and thus description thereof will be omitted.

Eleventh Embodiment FIGS. 19 and 20 show a seventh embodiment of the present invention.
6 shows a packaging cushioning material according to an embodiment corresponding to the invention of FIG. The flat rectangular frame 1 includes first to fourth frame members 1a to 1a.
1d, each of the frame members 1a to 1d is constituted by a laminated body obtained by folding a sheet made of, for example, cardboard, and the layers of the sheet forming the laminated body are bonded to each other outside the upper and lower bent portions. It has been in a laminated state. The step A ′ of the sheet extends along the height direction of the outer side sheet portion 11. The ends of the adjacent frame members 1a to 1d in the longitudinal direction are connected at a portion of the outer surface sheet portion 11, and the end portions of the respective frame members are zigzag in a continuous portion at the outer portion without leaving the outer surface sheet portion 11. A large clasp-like connection-like structure portion 16 is formed, which is cut off at approximately 45 degrees. The port structure 16 can be configured similarly to the cushioning material of the first embodiment or the cushioning material of the eighth embodiment.

The first frame member 1a and the fourth frame member 1d are also connected by the outer side sheet portion 11, and the fourth frame member 1d is separated into separation pieces 1i and 1j, and the separation pieces 1i and 1j.
Are formed with joint portions 18 and 18a at the ends on the butting side. One joint portion 18 is a glue-shaped joint portion in a state in which the sheet layer of the portion closer to the outside of the end of one separation piece 1i is extended, and the other joint portion 18a is a joint portion of the other separation piece 1j. It is a joint portion including a glue substitute receiving portion in which a layer of the sheet near the outer side of the end is cut off. Both joints 18, 18a
By overlapping and bonding, a series of frame materials 1
a to 1d are assembled into a rectangular frame 1 as shown in FIG. 19, and the outer surface of the fourth frame 1d is in a state of forming substantially the same vertical surface. Inside the frame 1, a raised bottom member 2 having a top sheet portion 20 in which two sheets of corrugated cardboard are stacked, and two-layered side leg portions 21 and 21 formed on the lower portions on both sides thereof. It is attached in the form of an insert.

The packaging cushioning material of the eleventh embodiment is more durable because each of the frame members 1a to 1d is constituted by a laminated body obtained by folding a sheet made of corrugated cardboard. Exhibits a buffering action. Eleventh
In the cushioning material of the embodiment, the joint portions 18 and 18a can be configured in the same manner as the cushioning material of the ninth embodiment, and instead of forming the joint portions 18 and 18a, a fourth frame material is used. By separating the separation pieces 1i and 1j of 1d and extending the outer sheet portion 11 at the tip of the frame 1d, for example, the fixing sheet portion 17 in the cushioning material of the fourth embodiment can be formed. Other configurations, operations, and effects of the cushioning material of the eleventh embodiment are substantially the same as those of the cushioning material of the eighth embodiment, and thus description thereof will be omitted.

Twelfth Embodiment FIG. 21 shows a cushioning material for packaging according to a twelfth embodiment of the present invention. In the packaging cushioning material of this embodiment, a closed loop-shaped outer frame 3 having a flat inner circumference substantially matching the flat outer circumference of the frame body 1 is formed by corrugated cardboard, cardboard, or other foldable material. Within 3,
The frame 1 is formed by inserting a series of frame materials 1a to 1d formed in a frame shape, and is constrained by the outer peripheral frame 3 so that the frame shape of the frame 1 does not change. The packaging cushioning material of this embodiment has no steps such as bonding when forming the frame materials 1a to 1d formed in a series into a frame shape.
The process of packing the items to be packaged is simplified, and the packaging cost is reduced.

Thirteenth Embodiment FIGS. 22 and 23 show a cushioning material for packaging according to an embodiment corresponding to the eleventh, twelfth and sixteenth aspects of the present invention.
As shown in FIG. 22, the first to eighth frame members 1a to 1h
It is formed of the same material and the same cross-sectional shape as the frame material of the embodiment, and is successively arranged in a row by the outer side sheet portion 11. At each end of the adjacent frame members of each of the frame members 1a to 1h, a port-like structure portion 16 for combining the frame members at right angles is formed while leaving the outer side sheet portion 11. I have.

The seventh frame 1g and the eighth frame 1 shown in FIG.
h, sixth frame member 1f, seventh frame member 1g, fifth frame member 1e
, A sixth frame 1f, a fourth frame 1d and a fifth frame 1e,
The third frame member 1c and the fourth frame member 1d, the second frame member 1b and the third frame member 1c, and the first frame member 1a and the second frame member 1b are sequentially arranged at right angles to a plane. Combination, first frame material 1
The inner side sheet portion 15a and the outer side sheet portion 11 of the fifth frame member 1e are bonded to form a flat rectangular frame 1 as shown in FIG. Therefore, the frame 1 is composed of the first frame member 1a and the fifth frame member 1e, the second frame member 1b and the sixth frame member 1f, the third frame member 1c and the seventh frame member 1g, Frame material 1d and the eighth frame material 1h are in parallel with each other in an inner / outer double state.

A raised bottom member 2 is inserted in the frame 1 in an inserted manner. The raised bottom member 2 is formed by bending a corrugated cardboard sheet.
And one side leg portion 21 whose upper end is continuous with the top sheet portion 20, and a slope continuous with a lower end of the one side leg portion 21 and an upper end of the other side leg portion 21. And a bottom sheet portion 26 continuing to the lower end of the other side leg portion 21. Since the two hollow portions 2d, 2d of the raised bottom member 2 are formed along the length direction of the frame 1 and have the same cross-sectional shape and the same cross-sectional size,
The cross-sectional profile of the raised bottom member 2 is square.

The cushioning material for packaging according to the thirteenth embodiment comprises a frame 1
Since each edge member is composed of a double frame member composed of parallel hollow bodies, it is rare that two hollow bodies are crushed at the same time even when a large impact is applied, so it is possible to exhibit excellent impact resistance. . The raised bottom member 2 has two hollow portions 2d, and the hollow portion 2d is deformed and restored when receiving an impact, so that the buffering action is further improved. Other configurations, operations, and effects of the twelfth embodiment are the same as those of the packaging cushioning material of the second embodiment, and a description thereof will be omitted.

Fourteenth Embodiment FIG. 24 shows a cushioning material for packaging according to another embodiment corresponding to the first, second, eighth, twelfth and sixteenth aspects of the present invention. The flat rectangular frame 1 is configured by first to fourth frame materials 1a to 1d having the same configuration as the frame material in the first embodiment,
A slit 15a is formed in the inner side sheet portion 15 of the opposing second frame member 1b and fourth frame member 1d along a horizontal direction substantially at the center in the height direction. On the other hand, the top sheet portion 20, the side leg portions 21, 21 and the end leg portions 22, 22
In the box-shaped raised bottom member 2 configured as described above, cut-and-raised protrusions 2a respectively corresponding to the slits 15a are formed on both sides of the top sheet portion 20 so as to extend in the horizontal direction. When the raised bottom member 2 is inserted into the frame 1, the projections 2a are guided to the corresponding slits 15a, and the raised bottom member 2 is mounted in the frame 1 in an appropriate posture.

The cushioning material for packaging of this embodiment does not require bonding when the raised bottom member 2 is mounted in the frame 1,
The packaging process of the article to be packaged is further simplified, and the packaging cost can be further reduced. Other configurations, operations, and effects of the cushioning material of this embodiment are the same as those of the cushioning material of the first embodiment, and a description thereof will be omitted.

Fifteenth Embodiment FIG. 25 shows a cushioning material for packaging according to still another embodiment corresponding to the first, second, eighth, twelfth and sixteenth aspects of the present invention. Frame 1 configured similarly to frame 1 of the 14th embodiment
In the frame members 1b and 1d facing each other, a flange-shaped projection 15b is formed in a cut-and-raised shape along the horizontal direction toward the respective inner surface sheet portions 15. On the other hand, the raised bottom member 2 having the same basic configuration as the raised bottom member 2 of the thirteenth embodiment includes:
A required portion of each of the side leg portions 21 and 21 has the protrusion 1
Notches 2b are respectively formed corresponding to 5b. When the raised bottom member 2 is inserted into the frame 1, the raised bottom member 2 is set in an appropriate posture into the frame 1 by setting the corresponding projections 15 b to be guided to the respective notches 2 b. Attached.

The cushioning material for packaging of this embodiment does not require bonding when the raised bottom member 2 is mounted in the frame 1, so that
The packaging process of the article to be packaged is further simplified, and the packaging cost can be further reduced. Other configurations, operations, and effects of the cushioning material of this embodiment are the same as those of the cushioning material of the first embodiment, and a description thereof will be omitted.

Sixteenth Embodiment FIG. 26 shows another embodiment of the raised bottom member 2. The raised bottom member 2 of this embodiment is formed in a tray shape with a flange. In order to manufacture the raised bottom member 2, for example, a sheet A5 having a planar shape as shown in FIG. On both sides of the bottom sheet portion 26 in the central portion of the sheet A5, the side sheet portion 2 is formed via a valley-shaped fold curve a1 and a mountain-fold fold curve a2 in order.
7 and a flange sheet portion 29 are formed in this order. At both ends of the bottom sheet portion 26, an end sheet portion 28 and a flange sheet portion 29 are formed in order through a valley-shaped fold curve a1 and a mountain-fold fold curve a2, respectively. The flaps 24 are provided on both sides of the flaps 28 through valley-shaped fold curves a1.
Are formed.

Next, the sheet A5 cut as shown in FIG. 7A is folded along the folding direction of each of the folding curves a1 and a2, and each of the margin flaps 24 is set at the end of the corresponding side sheet portion 27. Pasted on (b) ~
(D) As shown in the figure, the raised bottom member 2 having the flange sheet portions 29 on the upper side and both ends of the tray-shaped main body is manufactured. In the raised bottom member 2 configured as described above, for example, when the tray-shaped main body is inserted into the frame 1 of the first embodiment, each flange 29 is placed on the upper surface of the frame 1,
In the packaging process of the article to be packaged, the raised bottom member 2 can be mounted in the frame 1 very easily.

Seventeenth Embodiment FIG. 27 shows still another embodiment of the raised bottom member 2. In order to manufacture the raised bottom member 2 of this embodiment, for example, a sheet A5 made of corrugated cardboard is cut as shown in FIG. On both sides of the top sheet portion 20 at the center of the sheet A5, side leg portions 21 are respectively formed via fold curves a2 in a mountain-fold shape. Both end portions of the top sheet portion 20 have a mountain-shaped fold curve a
2, a leg flap 24 is formed on both sides of the end leg 22 via a mountain-shaped fold curve a2. In a portion corresponding to the lower end of each side leg 21, each end leg 22, and each of the margin flaps 24, for example, semicircular cutouts 2c are formed at appropriate intervals.

(E) Sheet A cut as shown in FIG.
5 is bent along each folding curve a2, and each of the margin flaps 24 is adhered to the inside of the end of the corresponding side leg portion 21, respectively, and the raised bottom member 2 as shown in (f) to (h) is obtained.
Is manufactured. The raised bottom member 2 having this configuration is, for example, a fifth
When inserted into the frame 1 in the embodiment, each leg 21,
22 are held at appropriate positions in contact with the corresponding inner side sheet portions 15 of the frame 1. As described above, when the raised bottom member 2 having this structure is used together with the frame 1 whose inner peripheral surface is a steeply inclined surface, the mounting to the frame 1 is very simple, so that the packing process of the article to be packaged is further simplified. Thus, the packaging cost can be further reduced. In addition, since the entire body is reinforced by each of the glue allowance flaps 24, the raised bottom member 2 is provided.
Is more robust and its buffering action is improved.
Furthermore, a number of notches 2 are provided at the lower ends of the leg portions 21 and 22.
By forming c, it is possible to improve the buffering effect of the leg portions 21 and 22 against the load in the vertical direction.

Eighteenth Embodiment FIG. 28 shows still another embodiment of the raised bottom member 2. The raised bottom member 2 is manufactured by, for example, bending a sheet made of corrugated cardboard and bonding required parts.
One substantially vertical side leg 21 and this side leg 2
Top sheet part 20 which is continuous with the upper end of 1 and indicates one end of the top surface
And an inclined partition sheet portion 25 continuous with an end portion of the top sheet portion 20, a bottom sheet portion 26 continuous with a lower end portion of the partition sheet portion 25, and an end portion of the bottom sheet portion 26. The other inclined partition sheet portion 25, the other top sheet portion 20 continuous with the upper end of the partition sheet portion 25, and the other side leg portion 21 continuous with the end of the top sheet portion 20. Is formed from.

The raised bottom member 2 has a hollow portion 2e having an isosceles cross-section in parallel with each other along the length direction, and hollow portions 2d each having a right-angled triangular cross-section located on opposite sides in opposite directions. The cross section is square. The raised bottom member 2
Since the vertical load is supported by the side leg portions 21 and 21 on both sides and the partition sheet portions 25 and 25 whose tops are in contact at the center of the top surface, the strength against the vertical load is higher. In addition, since the partition wall 25 inclined in the direction in which the external force acts is deformed so as to bend and absorbs an impact, a more excellent cushioning effect is exhibited. The raised bottom member 2 can be manufactured by bending a sheet along a folding curve parallel to a certain direction and bonding the outsides of the bent portions to each other, so that the manufacturing cost is lower.

Nineteenth Embodiment FIG. 29 shows still another embodiment of the raised bottom member 2. The raised bottom member 2 includes left and right top sheet portions 20,
The width of the bottom sheet portion 26 is made smaller than the entire width of the base member 20, and the side leg portions 21 and 21 are formed to be steeply inclined in the opposite direction. Other configurations are the same as those of the raised bottom member 2 of the eighteenth embodiment. It is. When the raised bottom member 2 is inserted into, for example, the frame 1 in the fifth embodiment, the leg portions 21 and 22 contact the corresponding inner surface sheet portions 15 of the frame 1 and are held at appropriate positions. Therefore, since the attachment to the frame 1 is very simple, the packing process of the article to be packaged is further simplified, and the packaging cost can be further reduced. Other operations and effects of the raised bottom member 2 are substantially the same as those of the eighteenth embodiment.

Twentieth Embodiment FIG. 30 shows still another embodiment of the raised bottom member. The raised bottom member 2 has end leg portions 22, 22 integrally formed at both ends of a top sheet portion 20 made of a corrugated cardboard sheet, and a plurality of end leg portions are formed at lower portions on both sides of the top sheet portion 20. And the top sheet portion 20
A plurality of upper leg portions 21a are formed on the upper sides on both sides so as to be alternate with the lower leg portions 21. When this raised bottom member 2 is attached to the inside of the frame 1 in the first embodiment, for example, there is an advantage that the end of the article to be packaged can be inserted and used from above or below.

Twenty-First Embodiment FIG. 31 shows still another embodiment of the raised bottom member 2. The raised bottom member 2 is formed by stacking corrugated cardboard sheets. For example, if the raised bottom member 2 is inserted into the frame 1 as shown in the first embodiment and attached in the state shown in the drawing, the vertical bottom member 2 is not affected by a vertical load. It has a very good buffering effect.

In each of the above-described embodiments, the example in which the cushioning material is formed by using a cardboard sheet has been described. However, it is also possible to manufacture a cardboard or other foldable and reproducible sheet. In the case where a cardboard sheet is used, a double-sided double-sided cardboard configured such that the stacked cores intersect can be used.

[0075]

In the cushioning material for packaging according to the first aspect, since each of the frame members 1a to 1d has a plurality of hollow portions, it is difficult to deform, and the plurality of hollow portions absorb the impact. In addition to exhibiting an excellent cushioning effect, the hollow portions of each frame material are formed along the length direction and have the same cross-sectional outer shape and cross-sectional size. Materials can be formed simultaneously and efficiently. Since each of the frame members 1a to 1d is connected in series, it can be transported and stored without occupying a large space in a semi-deployed state in which each of the frame members is formed and the connected portion is developed. At the end of the continuous portion of each of the frame members 1a to 1d, a connection-like structure portion 16 for combining the frame members with each other at a right angle is formed in a portion other than the outer side sheet portion 11, so that these are flat. It is very easy to construct a rectangular frame.

In the cushioning material for packaging according to the second aspect, since one hollow portion 10 and another hollow portion 10 are separated by an inclined partition, the frame members 1a to 1d are more difficult to deform.

In the cushioning material for packaging according to the third aspect, since the inner side sheet portions 15 of the respective frame members 1a to 1d are steeply inclined, when the whole of them is formed into a rectangular frame, the inclined surface is reduced. By simply inserting the raised bottom member having a side surface corresponding to the above, the raised bottom member can be attached to the frame.

In the packaging cushioning material according to the fourth aspect, each of the frame members 1a to 1d is constituted by a first portion 10a and a second portion 10b which is continuously parallel to one side surface thereof. Since the first portion 10a and the second portion 10b are unlikely to be crushed at the same time when receiving an impact, the impact resistance is large and a more excellent cushioning effect is exhibited.

The cushioning material for packaging according to the fifth aspect is a first portion 10a made of a hollow body constituting each of the frame members 1a to 1d.
The second part 10b, which is continuous and parallel to this, has a lower height, so that the second part 10b can be used as a raised bottom. Also, a cushioning material with a raised bottom can be manufactured only by combining the frame members 1a to 1d in a square shape.

In the cushioning material for packaging according to the sixth aspect, since the outer side sheet portion 11 of each of the frame members 1a to 1d is composed of a plurality of layers, even when the frame 1 is composed of them, As well as the strong frame 1, the buffering action is further improved.

The packaging cushioning material according to the seventh aspect is more robust because each of the frame members 1a to 1d is formed of a laminate in which sheets are folded.

In the packaging cushioning material according to the eighth aspect of the present invention, the structure of the port-like structure portion 16 at the end between adjacent frame materials is simple. We can assemble frame well.

In the cushioning material for packaging according to the ninth aspect, the fixing sheet portion 17 obtained by modulating the outer side sheet portion 11 is formed at the free end of the fourth frame material 1d. 1
By combining d in a square shape and fixing the fixing sheet portion 17 on the outer surface of the adjacent frame material, the frame 1 can be easily and reliably formed at the packing site of the packaged object. .

In the packaging cushioning material according to the tenth aspect, when the frame members 1a to 1d are combined in a square shape, the joint portion 18,
By connecting the separation pieces 1i and 1j by 18a,
At the packing site of the packaged object, the frame 1
Can be configured.

According to the eleventh aspect, the cushioning material for packaging comprises
The frame members 1a to 1h can form a frame body in which the frame material is doubled along the horizontal direction in four rounds, and one frame material and the other frame material are simultaneously crushed when subjected to an impact. So that the impact resistance is large,
Demonstrate better buffering action.

The cushioning material for packaging according to the twelfth aspect can exhibit substantially uniform impact resistance even if an external force acts on any side surface of the frame 1 combined in a square shape.

In the cushioning material for packaging according to the thirteenth aspect, since the outer peripheral portion of the frame 1 is constrained by the outer peripheral frame 3, there is no need for bonding or other fixing means when assembling the respective frame materials in a rectangular shape. The frame 1 can be assembled much more easily.

The cushioning material for packaging according to the present invention is constituted by an outer frame 1A having a plurality of hollow portions and an inner frame 1B having the same configuration as the outer frame 1A. The outer frame 1A and the outer frame 1A are unlikely to be crushed at the same time, so that the impact resistance is large and a more excellent cushioning action is exhibited.

In the packaging cushioning material according to the fifteenth aspect, since the height of the inner frame 1B is lower than that of the outer frame 1A, the inner frame B can be used as a raised bottom.

In the cushioning material for packaging according to the sixteenth aspect, since the raised bottom member 2 is provided inside the frame body 1,
It can be used in a state where the end of the article to be packaged is inserted and held inside.

The cushioning material for packaging according to the seventeenth aspect can constitute a cushioning material with a raised bottom simply by inserting the raised bottom member 2 into the frame 1. No bonding or other means is required.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of a cushioning material for packaging according to the present invention.

FIG. 2 is a developed plan view of the packaging cushioning material of FIG.

FIG. 3 is a schematic perspective view showing a state in which the cushioning material for packaging of FIG. 1 is being assembled.

FIG. 4 is a developed plan view of a raised bottom member in the packaging cushioning material of FIG. 1;

5 is a perspective view of the raised bottom member assembled from the unfolded state of FIG. 4 as viewed from above.

FIG. 6 is a perspective view of the assembled raised bottom member viewed from below.

FIG. 7 is a perspective view of the packaging cushion of the first embodiment in a used state.

FIG. 8 is an exploded perspective view showing a second embodiment of the packaging cushioning material according to the present invention.

9 is a partial plan view of the packaging cushioning material of FIG. 8 in an assembled state.

FIG. 10 is a partially enlarged perspective view showing a connection-like structure portion of the packaging cushioning material of FIG. 8;

FIG. 11 is a partially exploded perspective view showing a third embodiment of the cushioning material for packaging according to the present invention.

FIG. 12 is a partial perspective view showing a fourth embodiment of the cushioning material for packaging according to the present invention.

FIG. 13 is a partially broken perspective view showing a fifth embodiment of the cushioning material for packaging according to the present invention.

FIG. 14 is a partial perspective view showing a sixth embodiment of a packaging cushioning material according to the present invention.

FIG. 15 is a partial perspective view showing a seventh embodiment of a packaging cushioning material according to the present invention.

FIG. 16 is a partial perspective view showing an eighth embodiment of the cushioning material for packaging according to the present invention.

FIG. 17 is a partially cutaway perspective view showing a ninth embodiment of the cushioning material for packaging according to the present invention.

FIG. 18 is a partially cutaway perspective view showing a tenth embodiment of the cushioning material for packaging according to the present invention.

FIG. 19 is a partially cutaway perspective view showing an eleventh embodiment of the cushioning material for packaging according to the present invention.

FIG. 20 is a partial perspective view showing a connection-like structure portion of the packaging cushioning material of FIG. 19;

FIG. 21 is a partially exploded perspective view showing a twelfth embodiment of the cushioning material for packaging according to the present invention.

FIG. 22 is a perspective view showing a thirteenth embodiment of a cushioning material for packaging according to the present invention in a semi-expanded state.

FIG. 23 is a partially broken perspective view showing a state where the packaging cushioning material of FIG. 22 is assembled.

FIG. 24 is an exploded perspective view showing a fourteenth embodiment of the cushioning material for packaging according to the present invention.

FIG. 25 is an exploded perspective view showing a fifteenth embodiment of the cushioning material for packaging according to the present invention.

26A and 26B are views showing another form of the raised bottom member of the cushioning material for packaging according to the present invention, wherein FIG. 26A is an exploded plan view, FIG. 26B is a front view in an assembled state, and FIG. (D) is a side view of the assembled state.

FIG. 27 is a view showing still another embodiment of the raised bottom member.
(E) is a developed plan view, (f) is a front view of an assembled state,
(G) is a plan view of the assembled state, and (h) is a side view of the assembled state.

FIG. 28 is a partial perspective view showing still another embodiment of the raised bottom member.

FIG. 29 is a partial perspective view showing still another embodiment of the raised bottom member.

FIG. 30 is a perspective view showing still another embodiment of the raised bottom member.

FIG. 31 is a partial perspective view showing still another embodiment of the raised bottom member.

FIG. 32 is a perspective view showing a state before completion of a conventional cushioning material for packaging.

FIG. 33 is a partial perspective view of a conventional packaging cushion in use.

[Explanation of symbols]

 A, A5 Sheet A1 First frame material forming section A2 Second frame material forming section A3 Third frame material forming section A4 Fourth frame material forming section a1 Valley-folding curve a2 Mountain-folding curve a3 Notch 1 Frame 1A Outer frame 1B Inner frame 1a to 1h Frame 1i, 1j Separation piece 10 Hollow section 11 Outer side sheet section 12 Bottom sheet section 13, 13a Partition sheet section 14 Top sheet section 15 Inside Side sheet part 15a Slit 15b Projection 16 Connection structure part 16a Gap allowance flap 17 Fixing sheet part 18, 18a Joint part 10a First part 10b Second part 2 Raised bottom member 2a Projection 2b, 2c Notch 2d, 2e Hollow portion 20 Top sheet portion 21 Side leg portion 21a Upper leg portion 22 End leg portion 23 Inclined sheet portion 24 Flap allowance flap 25 Partition sheet portion 26 Bottom sheet Part 27 side seat 28 end surface sheet portion 29 the flange seat 3 outer peripheral frame 4 to be packaged 6 body 60, 61 cuts 62, 63 irregular portion 64, 65 folding line 66, 67 the flap 60a recess

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[Procedure amendment]

[Submission date] May 18, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

FIG. 10

FIG.

FIG. 7

FIG. 8

FIG. 9

FIG. 11

FIG.

FIG. 13

FIG. 14

FIG. 16

FIG.

FIG. 28

FIG. 33

FIG.

FIG.

FIG. 29

FIG. 31

FIG. 32

FIG.

FIG. 21

FIG. 24

FIG.

FIG. 23

FIG.

FIG. 25

FIG. 26

FIG. 27

Continued on the front page (72) Inventor Yoshimasa Yokoyama 1379 Shinotsubo, Mikage, Mikage-cho, Higashinada-ku, Kobe 4

Claims (17)

[Claims] 1. A first frame member 1a and a third frame member 1c for forming a parallel pair of edge members of a plane rectangular frame, and another parallel pair of edge members of the frame. Frame material 1b for
And a fourth frame member 1d, wherein each of the frame members 1a to 1d has a plurality of hollow portions 10 arranged in parallel along the length direction, and an outer shape and a cross-sectional size of a cross section intersecting with the hollow portions 10 Are substantially equal to each other, and the hollow bodies constituting the frame members 1a to 1d are cardboard,
Each of the frame members 1a to 1d is formed in a line by bending a cardboard or other foldable sheet.
1 to 1d are combined into a flat rectangular frame, the outer side sheet portion 11 located outside is continuous, and the ends of the adjacent frame members of each of the frame members 1a to 1d are connected to the outer side sheet portion 11 A cushioning material for packaging, characterized by having a mouth-like structure portion 16 for combining the frame members at right angles, with the exception of the above. 2. The frame members 1a to 1d have a rectangular cross-sectional outer shape, and one hollow portion 1 constituting each of the frame members 1a to 1d.
A partition sheet portion (13) that is inclined with respect to the cross-sectional shape of the frame members (1a to 1d) is provided between the hollow member (0) and another hollow portion (10) adjacent to the hollow portion (10). The cushioning material for packaging according to 1. 3. The frame members 1a to 1d have trapezoidal cross-sectional outlines, the outer side sheet portion 11 is substantially vertical, and the inner side sheet portion 15 opposed to the outer side sheet portion 11 is formed on the outer side surface. The outer surface is provided between one hollow portion 10 that is steeply inclined with respect to the seat portion 11 and that constitutes each of the frame members 1a to 1d, and another hollow portion 10 that is adjacent to the hollow portion. The packaging cushioning material according to claim 1, further comprising a partition sheet portion 13 inclined with respect to the sheet portion 11. 4. The first frame members 1a to 1d are arranged such that the outer side sheet portion 11 is substantially vertical and the first frame members 1a to 1d are located outside when the respective frame members 1a to 1d are combined with a planar rectangular frame. The part 10a is positioned continuously and parallel inside the first part 10a when the frame members 1a to 1d are combined into a planar rectangular frame, and the height of the part 10a is equal to that of the first part 10a. The cushioning material for packaging according to claim 1, comprising a second portion (10b) substantially equal in height. 5. The first frame members 1a to 1d are arranged such that the outer side sheet portion 11 is substantially vertical, and the first frame members 1a to 1d are located outside when the respective frame members 1a to 1d are combined with a flat rectangular frame. The part 10a, when the frame members 1a to 1d are combined into a planar rectangular frame, are positioned continuously and parallel inside the first part 10a, and the height is higher than the first part 10a. Second too low
The cushioning material for packaging according to claim 1, characterized in that the cushioning material is constituted by: 6. The packaging cushion according to claim 1, wherein the outer side sheet portion 11 is formed of a plurality of layers obtained by folding a required portion of the sheet. Wood. 7. A first frame material 1a and a third frame material 1c forming parallel pairs of edge materials of a plane rectangular frame, and a second frame material forming another parallel pair of edge materials. 1b and a fourth frame member 1d, wherein each of the frame members 1a to 1d is formed by a laminate in which cardboard, cardboard, and other foldable sheets are laminated or folded in a state of being parallel in the vertical direction, The adjacent frame members of the frame members 1a to 1d are connected to each other by the frame members 1a.
1 to 1d are combined into a flat rectangular frame, the outer side sheet portion 11 located outside is continuous, and the ends of the adjacent frame members of each of the frame members 1a to 1d are connected to the outer side sheet portion 11 A cushioning material for packaging, characterized by having a mouth-like structure portion 16 for combining the frame members at right angles, with the exception of the above. 8. The joint 16 is a joint in which a portion of one of the adjacent frame members other than the outer side sheet portion 11 is brought into contact with a side surface of the other frame member. Or a large clasp-like connection in which the ends of the adjacent frame members are cut away at approximately 45 degrees in a linear or zigzag shape in a plan view, leaving the outer side sheet portion 11 apart. The packaging cushioning material according to any one of claims 1 to 7, wherein the packaging cushioning material has a cross-section. 9. The first frame member 1a and the fourth frame member 1d are discontinuous, and the first frame member 1a or the fourth frame member 1d is discontinuous.
One of the frame members is formed with a fixing sheet portion 17 for extending the outer side sheet portion 11 and fixing the outer side sheet portion 11 to the outer side surface of the other frame member by bonding or other means. The cushioning material for packaging according to any one of claims 1 to 8. 10. The first frame member 1a and the fourth frame member 1d.
The first frame member 1a or the fourth frame member 1d is separated into two separation pieces 1i and 1j in a cut shape crossing the hollow portion 10, and one of the separation pieces 1i When the two separation pieces 1i and 1j abut against each other at the butting end with the other separation piece 1j,
The packaging cushion according to claim 6 or 7, wherein the joint portions (18, 18a) are formed by bonding or other fixing or uneven engagement with each other so that the outer side surface forms a substantially uniform vertical surface. Wood. 11. A first frame member 1a and a third frame member 1c forming parallel pairs of edge members of a plane rectangular frame, and a second frame member forming another parallel pair of edge members of the frame. Frame material 1b and fourth frame material 1d, a fifth frame material 1e provided side by side inside the first frame material 1a, and a sixth frame material provided side by side inside the second frame material 1b. Frame material 1f and the third frame material 1c
A seventh frame 1g provided side by side inside the
And an eighth frame 1h provided side by side inside the frame 1d, wherein each of the frames 1a to 1h has a plurality of hollow portions 10 arranged in parallel along the length direction, and The hollow body which has substantially the same outer shape and cross-sectional size as a cross section that intersects with 10, and the hollow body forming each of the frame members 1a to 1h is a cardboard,
Each of the frame members 1a to 1h is formed in a line by bending a cardboard or other foldable sheet.
1 to 1 h are combined with a flat rectangular frame, an outer sheet portion 11 located outside is continuous, and an end of each of the adjacent frame members of each of the frame members 1 a to 1 h is the outer sheet member 11. A cushioning material for packaging, characterized by having a mouth-like structure portion 16 for combining the frame members at right angles, with the exception of the above. 12. A cushioning material for packaging, characterized in that the cushioning material for packaging according to any one of claims 1 to 11 constitutes a rectangular frame 1 in a plan view. 13. A rectangular frame 1 in a plan view, using the cushioning material for packaging according to any one of claims 1 to 8 and 11.
A cushioning material for packaging, characterized in that the frame 1 is provided with a closed loop-shaped outer frame 3 that is in contact with the outer peripheral surface of the frame 1. 14. An outer frame 1A in which the packaging cushioning material according to any one of claims 1 to 3 and 7 is combined in a square shape in plan view, and the packaging material according to any one of claims 1 to 3 and 7. Inner frame 1B in which cushioning material for packaging is combined in a square shape in a plan view and provided in contact with the inner peripheral surface of outer frame 1A.
And a cushioning material for packaging. 15. The height of the inner frame 1B is lower than the height of the outer frame 1A.
4. The cushioning material for packaging according to 4. 16. The cushioning material for packaging according to claim 12, wherein the inside of the frame 1 is formed of a pair of frame members that constitute a pair of parallel edge members of the frame 1 entirely or in parallel. A raised bottom member 2 formed by folding or folding a foldable sheet of cardboard, cardboard, or other foldable sheet along a predetermined direction is provided on the inner portion.
Cushioning material for packaging. 17. A frame 1 in which the cushioning material for packaging according to claim 3 is combined in a rectangular shape in a plan view, and at least one pair of rims of the frame 1 provided inside the frame 1. It has leg-shaped portions 21 and 21 in contact with the inner side sheet portion 15 of the frame material to be formed, and is formed by bending or folding or laminating cardboard, cardboard or other foldable sheets along a predetermined direction. And a raised bottom member 2.